Displaying SSAS measure in thousands or millions - ssas

Question

I have an Olap cube created using Microsoft SSAS. Inside I have a many-to-many relationship between source transaction currency and required "Reporting" currency. This is all functional, however to display a dynamic currency symbol I am using the "Currency" format string default and passing in a custom LCID based on the currency selected.
The problem with using the "Currency" format is the decimal places and large numbers. I am reporting millions of pounds/dollars and my CFO wants to see these numbers reported in thousands or millions. To control this I have read about using a special format string like #,, but this won't allow the currency symbol to be shown.
I had an idea to have a special dimension which would equate to 1, 1000, 1000000 and then create a calculated measure which divides by this (obviously defaulting to 1 and not aggregatable), but I have lots of measures.
Can anybody else advise on an alternative approach?

Answer 1

I would just set the FORMAT_STRING via a script assignment:
FORMAT_STRING(([Dim-Currency].[Currency Code].&[USD])) = "$#,,";
FORMAT_STRING(([Dim-Currency].[Currency Code].&[Euro])) = "€#,,";

Answer 2

You may use the SCOPE statement here:
Scope(AddCalculatedMembers([Measures].Members));
This = case
when [Measures].CurrentMember >= 1000000
then Cstr(Cint([Measures].CurrentMember / 1000000)) + " millions"
when [Measures].CurrentMember >= 1000
then Cstr(Cint([Measures].CurrentMember / 1000)) + " thousands"
else [Measures].CurrentMember
end;
End Scope;
Where Cint return int value and Cstr helps to join int value to text. I'm not sure if it's not too much. I've never used the "Currency" type, honestly.

Answer 3

I'm with #GregGalloway. In our cube-script it is implemented like this:
Scope
([Dim-Currency].[Currency Code].&[EUR]);
//EUR
FORMAT_STRING(This) = '€ #,##0.00';
End Scope;
Scope
([Dim-Currency].[Currency Code].&[GBP]);
FORMAT_STRING(This) = '£ #,##0.00';
End Scope;
We render via Pyramid front-end.